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 Topic: critical points
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 Simplify the expression 2012-02-12 From Christy:Hi guys, ok so I'm having problems with solving this equation since it's been so long I've done precal. I have to find critical points so I have to find the derivative first. This is what I've done so far s(t)= (t-6)^4 * (t+1)^2 t'= 4(t-6)^3*(1)*(t+1)^2+ 2(t+1)(1)*(t-6)^4 so this is where I got stuck, which is the algebra part. How can I simplify this to get the answer to figure out the critical points.Answered by Penny Nom. Smallest cone containing a 4cm radius inscribed sphere 2007-12-19 From Eva:A sphere with a radius of 4cm is inscribed into a cone. Find the minimum volume of the cone.Answered by Stephen La Rocque. Maximizing profit 2007-01-23 From Denise:Total Profit= Total Revenue-Total Cost P(x)=R(x)-C(x) Where x is the number of units sold. Find the maximum profit and the number of units that must be sold in order to get that profit. R(x)=5x C(x)=.001x^2+1.2x+60Answered by Stephen La Rocque.

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